36 citations · 122 across the 9 of their papers we have counts for
10 papers
Simulating tidal disruption events in nuclear star clusters
Philip Cho, Kai Wu, Francesco Flammini Dotti +5
Context. Nuclear star clusters (NSCs) and supermassive black holes (SMBHs) often coexist at the centers of galaxies, engaging in complex dynamical interactions that influence SMBH…
A High-order piecewise field-aligned triangular finite element method for electromagnetic gyrokinetic particle simulations of tokamak plasmas with open field lines
Zhixin Lu, Guo Meng, Eric Sonnendruecker +6
A high-order piecewise field-aligned triangular finite element method is developed and implemented for global electromagnetic gyrokinetic particle-in-cell simulations of tokamak pl…
FROST-CLUSTERS -- III. Metallicity-dependent intermediate mass black hole formation by runaway collisions in dense star clusters
Antti Rantala, Thorsten Naab, Natalia Lahén +4
We explore the formation of intermediate mass black holes (IMBHs), potential seeds for supermassive black holes (SMBHs), via runaway stellar collisions for a wide range of star clu…
Evaluation of performance portability frameworks for the implementation of a particle-in-cell code
Victor Artigues, Katharina Kormann, Markus Rampp +1
This paper reports on an in-depth evaluation of the performance portability frameworks Kokkos and RAJA with respect to their suitability for the implementation of complex particle-…
MPCDF HPC Performance Monitoring System: Enabling Insight via Job-Specific Analysis
Luka Stanisic, Klaus Reuter
This paper reports on the design and implementation of the HPC performance monitoring system deployed to continuously monitor performance metrics of all jobs on the HPC systems at…
Stable interpolation with isotropic and anisotropic Gaussians using Hermite generating function
Katharina Kormann, Caroline Lasser, Anna Yurova
Gaussian kernels can be an efficient and accurate tool for multivariate interpolation. In practice, high accuracies are often achieved in the flat limit where the interpolation mat…
A massively parallel semi-Lagrangian solver for the six-dimensional Vlasov-Poisson equation
Katharina Kormann, Klaus Reuter, Markus Rampp
This paper presents an optimized and scalable semi-Lagrangian solver for the Vlasov-Poisson system in six-dimensional phase space. Grid-based solvers of the Vlasov equation are kno…
CADISHI: Fast parallel calculation of particle-pair distance histograms on CPUs and GPUs
Klaus Reuter, Jürgen Köfinger
We report on the design, implementation, optimization, and performance of the CADISHI software package, which calculates histograms of pair-distances of ensembles of particles on C…
Wave-driven dynamo action in spherical MHD systems
K. Reuter, F. Jenko, A. Tilgner +1
Hydrodynamic and magnetohydrodynamic numerical studies of a mechanically forced two-vortex flow inside a sphere are reported. The simulations are performed in the intermediate regi…
A Spherical Plasma Dynamo Experiment
E. J. Spence, K. Reuter, C. B. Forest
We propose a plasma experiment to be used to investigate fundamental properties of astrophysical dynamos. The highly conducting, fast-flowing plasma will allow experimenters to exp…